This type of system heats and cools air much like a ducted model, but it doesn’t depend on ductwork to maneuver warm or awesome air through a household. Alternatively, the outdoor device connects to a number of specific indoor air handlers, or “heads,” that are put in through the entire https://propaneheatpumps35677.ivasdesign.com/52806593/the-basic-principles-of-heat-pumps